tennis accessories

Alpine Astronomical Baader T-2 Quick Change Ring T2-07

Free Express Shipping! Alpine Astronomical Baader T-2 Quick Change Ring Part of the Astro T-2 Modular System, Male T-2 Threads, Zeiss Micro Bayonet, Quick Release Ring for Accessories, Allows for Fast Setup and Gear Changes, Eliminates Having to... more

Alpine Astronomical Baader Machine Grease #2 Teflon-White (-13 to 104°F) GREASE-2

Alpine Astronomical Baader Machine Grease #2 Teflon-White (-13 to 104°F) Useful for Telescope Mounts, Good Lubricating Properties, Prevents Sticking and Jamming TELESCOPES-Other Telescope Accessories more

Alpine Astronomical Baader Diamond Steeltrack T-2 Adapter BDS-T2

[Pre Order - allow extra time] Alpine Astronomical Baader Diamond Steeltrack T-2 Adapter Replaces Stock Eyepiece Holder, T-2 Threads for Imaging Accessories, Standard 2" Eyepeice Filter Threads more

Alpine Astronomical Baader FlipMirror II Star Diagonal BFM-II

Free Express Shipping! Alpine Astronomical Baader FlipMirror II Star Diagonal Essential for Accurate Astrophotography, Three Ports for Cameras & Accessories, Multi-Layer Aluminum-Coated Flip Mirror, Precise Adjustments for All Light Paths, Caps for All... more

Alpine Astronomical M43 7.5mm Extension Ring for Hyperion and Morpheus Eyepieces SPCR-43

Alpine Astronomical M43 7.5mm Extension Ring for Hyperion and Morpheus Eyepieces Fits between Eyecup and Eyepiece, Adds 7.5mm of Optical Distance, Threaded M43 Interior and Exterior Ends TELESCOPES-Other Eyepiece Accessories more

Alpine Astronomical Baader Standard Dovetail Base DOVE-B

Use the Alpine Astronomical Baader Standard Dovetail Base to mount a variety of accessories onto your optical tube assembly (OTA) such as their multi-purpose quick-release finder bracket (MQR III & IV) the Witty 1 tangent assembly or the Sky Surfer... more

Alpine Astronomical Baader 1.25"/T-2 Click-Lock Eyepiece Holder Adapter T2-08

Designed for 1.25 eyepieces and accessories the Alpine Astronomical Baader 1.25/T-2 Click-Lock Eyepiece Holder Adapter can be used to upgrade the conventional bronze compression ring and set screws on your telescope drawtube diagonals or Barlow lens or... more

Alpine Astronomical Baader 0.9 Neutral Density Filter (1.25") FND1-1

Free Express Shipping! Alpine Astronomical Baader 0.9 Neutral Density Filter (1.25") Ideal for Lunar Observation, Phantom Group Optical Coatings, Fits 1.25" Eyepieces and Accessories, 0.9 Optical Density, 12.5% Transmission, 8 Reduction Factor,... more

Alpine Astronomical Baader 0.6 Neutral Density Filter (1.25") FND0-1

Free Express Shipping! Alpine Astronomical Baader 0.6 Neutral Density Filter (1.25") Ideal for Lunar Observation, Phantom Group Optical Coatings, Fits 1.25" Eyepieces and Accessories, 0.6 Optical Density, 25% Transmission, 4 Reduction Factor, Stackable... more

Alpine Astronomical Baader 0.9 Neutral Density Filter (2") FND1-2

[Pre Order - allow extra time] Alpine Astronomical Baader 0.9 Neutral Density Filter (2") Ideal for Lunar Observation, Phantom Group Optical Coatings, Fits 2" Eyepieces and Accessories, 0.9 Optical Density, 12.5% Transmission, 8 Reduction Factor,... more

Alpine Astronomical Baader Deluxe 1.25" / T-2 Eyepiece Holder EYEHOLD-2

Free Express Shipping! Alpine Astronomical Baader Deluxe 1.25" / T-2 Eyepiece Holder Part of the T-2 Astro Modular System, Holds 1.25" Eyepieces & Accessories, Tight Fit for Accurate Optical Alignment, Bronze Compression Ring, 3 Set Screws, Locking... more

Alpine Astronomical Baader Wide T-Ring Set for Nikon Z TRING-NZW

[Pre Order - allow extra time] Alpine Astronomical Baader Wide T-Ring Set for Nikon Z Part of the Astro T-2 Modular System, Connect DSLR Body to T-2 Accessories, Secure Camera-Side Bayonet Mount, Removable T-Mount for Expanded Uses more